Area Forecast Discussion Issued by NWS Spokane, WA
000
FXUS66 KOTX 182114
AFDOTX
Area Forecast Discussion
National Weather Service Spokane WA
214 PM PDT Mon Mar 18 2024
.SYNOPSIS...
High pressure will slowly break down early this week brining warm
and dry conditions through tomorrow. Over the second half of the
week, temperatures will cool and chances of lowland rain and
mountain snow will return through the weekend.
&&
.DISCUSSION...
Today through Wednesday: Ridging will slowly weaken the next couple
days but we remain warm and dry today and tomorrow. Orographic
ascent from west flow increases precipitation chances Wednesday in
the Cascades and Panhandle. Snow levels ranging from 4500-6000 feet
Wednesday will lead to minimal impacts.
Thursday through Monday:
Snow chances increase in the mountains Thursday as a shortwave
approaches from Oregon. Snow levels start around 4500 feet but
warming daytime temperatures Thursday minimize snow impacts again in
the mountain passes. Even into Friday impacts appear minimal. A
backdoor cold front coming from the northeast will bring cooler air
to support snow first at Lookout Pass and the Northern panhandle
lowlands Friday night into Saturday and eventually the Cascade
passes into Saturday. Continual cold air advection may bring snow as
far southwest as Spokane Sunday. Additional chances for rain and
snow reach into the beginning of next week.
Chance of 4" or more/8" or more/12" or more Fri-Mon:
Stevens - 65%/25%/0%
Lookout - 85%/65%/40%
Sherman - 55%/20%/0%
Chance of 1" or more/2" or more/4" or more Fri-Mon:
Spokane - 40%/25%/10%
Lewiston - 0% for all
Pullman - 10%/0%/0%
Wenatchee- 0% for all
Sandpoint - 75%/67%/45%
/Butler
&&
.AVIATION...
18Z TAFS: High pressure will result in VFR conditions regionwide
for the next 24 hours.
FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: High confidence in
VFR conditions. Low confidence in patchy ground fog in sheltered
valleys and near bodies of water tonight.
------------------------
Confidence descriptors:
Low - Less than a 30 percent chance
Moderate - 30 to 70 percent chance
High - Greater than a 70 percent chance
For additional probabilistic information for NWS Spokane airports,
please refer to the Aviation Dashboard on our webpage:
https://www.weather.gov/otx/avndashboard
&&
.PRELIMINARY POINT TEMPS/POPS...
Spokane 39 68 41 61 40 57 / 0 0 0 10 0 30
Coeur d`Alene 40 65 41 60 39 53 / 0 0 0 10 10 50
Pullman 43 67 39 61 41 54 / 0 0 0 10 20 40
Lewiston 45 73 45 69 46 62 / 0 0 0 10 20 20
Colville 38 66 37 60 36 56 / 0 0 0 10 20 40
Sandpoint 38 61 37 57 39 49 / 0 0 10 20 30 80
Kellogg 42 65 43 59 41 48 / 0 0 0 10 20 70
Moses Lake 41 72 40 66 41 63 / 0 0 0 0 0 0
Wenatchee 46 72 43 65 42 60 / 0 0 0 0 0 10
Omak 43 71 42 66 41 62 / 0 0 0 0 0 10
&&
.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&
$$